drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Unsichere Verwendung temporärer Dateien in perl
Name: |
Unsichere Verwendung temporärer Dateien in perl
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ID: |
200412-04 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Di, 7. Dezember 2004, 12:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0976
http://www.trustix.org/errata/2004/0050/ |
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Applikationen: |
Perl |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200412-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Perl: Insecure temporary file creation Date: December 07, 2004 Bugs: #66360 ID: 200412-04
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Synopsis ========
Perl is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.
Background ==========
Perl is a stable, cross-platform programming language created by Larry Wall.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-lang/perl < 5.8.5-r2 *>= 5.8.5-r2 >= 5.8.6-r1 dev-lang/perl == 5.8.6 *>= 5.8.5-r2 >= 5.8.6-r1
Description ===========
Some Perl modules create temporary files in world-writable directories with predictable names.
Impact ======
A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When a Perl script is executed, this would result in the file being overwritten with the rights of the user running the utility, which could be the root user.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Perl users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=perl-5.8.5-r2"
References ==========
[ 1 ] CAN-2004-0976 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0976 [ 2 ] Trustix Advisory #2004-0050 http://www.trustix.org/errata/2004/0050/
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200412-04.xml
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License =======
Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
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